The application of energy saving glass (ESG) is becoming a popular trend in future energy smart buildings. However, the ESG attenuates useful signals which are necessary for the communication systems owing to its coating. To solve this problem, this paper presents a Tri-bandpass frequency selective surface (FSS) on the coating of ESG for GSM 900/1800/1900 MHz, UMTS 2100 MHz frequency bands and 5G technology. And −3dB bandwidth covers 833MHz–1009MHz, 1842MHz–2200MHz and 3420MHz–4300MHz. A stable frequency response has been achieved with increasing incident angles from 0° to 45°, for both TE and TM polarizations.